Question

explain variation in value of g​

Answer 1

Answer:

The value of 'g' is 9.8.'g' is acceleration due to gravity.At the centre of the earth it will turn zero because there will be no acceleration at the centre of the earth.,

Answer 2

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• changing along the surface of Earth

the blog at equator and flatter at the poles its radius is largest at the equator and smallest at the poles the value of g is does highest (9.832 metre per second square) atat the poles and decreases slowly with decreasing latitude it is lowest at (9.78 metre per second square) at the equator.

• change with height

as we go above the Earth's surface the value of r in equation 5 which are the small in comparison to the earth radius. on the other hand when we consider an artificial satellite orbiting the earth we have to take into account the change in the value of g due to the large change in the distance of the satellite from the centre of the earth.

• change with depth

the value of g also changes if we go inside the earth the value of r in equation 5 decreases and one would think that values should increases as per the formula however the part of earth which contributes towards the gravitational force felt by the object also decreases. which means that value of m to be used in equation 5 also decreases at combining result of change in r and m the value of g decreases as we go deep inside the earth.

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